Securing means for fabric roofing material



J. R. MCCORD, JR.

SECURING MEANS FOR FABRIC ROOFING MATERIAL. APPLICATION FILED MAR. 30, 1920.

E 1,356,930. I Patented Oct. 26,1920.

IN VE N TOR 0/ 7/ 155 P M C 60/20 J2 ATTORNEY JAMES R. McCORD, JIL. OF ST. LOUIS, MISSOURI.

SECURING MEANS FOR FABRIC ROOFING MATERIAL.

Specification of Letters Patent.

Application 'filed March so, 1920. Serial No. 369,999.

To (11/ (0/10/12, it may concern Be it known that I. JAMES R. McCom), J12. a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Securing Means for Fabric oofing Material, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to. devices of the character that are used for securing strips of fabric roofing material in operative position.

One object of the invention is to provide an inexpensive device for the purpose described that will securely hold two lapped strips of fabric roofing material without forming a hole in the top strip through which water can seep.

Another object is to provide an inert: pensive and easily applied means for securing lapped strips of fabric roofing material in position, that will effectively seal the exposed edge portion of the top strip without interfering with the drainage of water from said top strip. Other objects and desirable features of my invention will be hereinafter pointed out.

Figure 1 of the drawings is a perspective view, illustrating a portion of a roof provided with strips of fabric roofing material that are secured in position in accordance with my improved device.

Fig. 2 is a vertical sectional view, taken on the line 22 of Fig. 1.

Fig. 3 is a perspective view of one of the pads that are arranged on the upper edge portion of the under strip between the securing devices which lap over the top strip.

Fig. 4 is a perspective view of one of my improved securing devices; and

Fig. 5 is a perspective view of a securing device embodying my invention, that is adapted to be connected to the supporting structure of the roof by a nail.

Referring to Fig. 1 of the drawings which illustrates the preferred form of my inven tion, A designates strips of fabric roofing.

material that are arranged longitudinally of a roof in such a manner that the lower edge portion of each strip laps over the upper edge portion of an adjacent strip. The strips A are secured to the supporting structure 1 of the roof by securing devices B formed preferably from sheet metal and constructed so that they will securely hold two ot'erlapped strips of rooting material without forming a hole in the top strip through which water can seep. Each of the devices B preferably comprises a base portion 2 that'is adapted to be arranged upon the under strip of roofing material adjacent the upper edge of same, and an upwardlypro ecting portion 3 that is adapted to be bent downwardly over the lower edge portion of the top strip of roofing material after said top strip has been lapped over the under strip. Pad C are preferably arranged upon the 11 per edge portion of the under strip of roofing material between the devices B, so as to cooperate with the devices B to form a substantially level sup porting surface for the top strip and also to cause the lower edge portion of said strip to be securely sealed to the under strip be tween the points where said top strip is overlapped by the portions 3 of the devices The pads O can be conveniently formed from small pieces of fabric roofing material coated with asphalt or some other suitable substance of a low melting point that will melt sufficiently to cause the pads to adhere to the strips of roofing material between which it is interposed when the roof is heated by the suns rays. One convenient way of retaining the pads C in operative position is to provide each pad with a tongue 4 or turned over portion that projects underneath the upper edge portion Patented Oct. 26, 1920.

of the underneath strip of roofing material upon which the pad is positioned.

The devices B are secured to the supporting structure 1 of the roof by nails or by prongs on said devices that project through the under strip of roofing material and extend into the supporting structure 1 of the roof, as shown in Fig. 2. Preferably the base portion 2 of each of the devices B is provided with an integral, sharp-pointed prong 5 formed by severing a portion of the member B and bending it downwardly at right angles to the base portion 2. If

desired, the prong 5 of each device may be provided with an integral reinforcing rib 5 that extends longitudinally of the prong intermediate the side edges of same and which tends to strengthen the prong and prevent it from deflecting when it is driven into the supporting structure 1 of the roof. Instead of providing the devices B with integral prongs 5, nail 6 can be used for securing the devices B in position, as shown in Fig. 5. I prefer to provide the upwardlyprojecting portion 3 of each of the devices B with a slight protuberance or projection 7 so that when said portion is bent downwardly into engagement with the top strip of roofing material the projection 7 will sink into said top strip slightly and thus hold it securely in position.

In using my invention, the devices B and the pads C are arranged alternately along the upper edge portion of the under strip of: roofing material and secured in position by driving the prongs 5 on the devices B downwardly through said strip into the supporting structure 1 of the roof. If the devices B are not provided with integral prongs nails 6 are used to secure said devices in position. The top strip is then lapped over the upper edge portion of the under strip and secured in position by bending the portions 3 of the devices B downwardly into engagement with said top strip.

A means of the construction above described for securing strips of fabric roofing material in position is superior -to the devices now in general use for securing fabric roofing material, as it enables two overlapped strips of roofing material to be securely, connected to the supporting structure of the roof without forming a hole in the top strip through which water can seep.

Such a means is inexpensive to manufac- I claim as new and desire to secure by Letters Patent is: v

1. A securing means for two overlapped strips of roofing material, consisting of a plurality of members arranged between said strips and connected to the supporting structure of the roof, portions on said members that lap over the top strip, and pads interposed between the strips of roofing material and arranged between said members.

2. A securing means for two overlapped strips of roofing material, comprising a plurality of spaced devices secured to the supporting structure of the roof in such a manner that they clamp the under strip in position and lap over the top strip, and means for sealing the exposed edge of the top strip at points intermediate said devices.

3. A means for securing two overlapped strips of roofing material in position, consisting of a plurality of devices arranged in spaced relation on the edge portion of the under strip, means for securing said devices to the supporting structure of the,

roof, portions on said devices that are adapted to be bent over the exposed edge of the top strip, and pads interposed between the strips of roofing material and arranged between said devices.

4. A means for securing two overlapped strips of roofing material, comprising a plurality of devices arranged in spaced relation on the under strip and provided with integral portions that-are adapted to be driven through said strip and into the supporting structure of the roof, pads arranged on the under strip between said devices, and integral portions on said devices that are adapted to be bent downwardly into engagement with the top strip, said pads being coated with a substance that will seal said pads to said strips of roofing material when said strips are subjected to heat.

JAMES R. MoCORD, JR. 

